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Title: Molecular interactions of polymethyl methacrylate and polyethyeleneglycol solutions in tetrahydrofuran
Authors: Selvakuma, M
Bhat, D Krishna
Keywords: Polymer solutions
Ultrasonic velocity
Interaction parameter
Issue Date: Oct-2008
Publisher: CSIR
Abstract: The ultrasonic velocity, density and viscosities of the polymethylmethacrylate (PMMA) and polyethyleneglycol (PEG) solutions in tetrahydrofuran (THF) have been measured in the temperature range 293-313K. Using these data, free energy of mixing, solvation number and different polymer-solvent interaction parameters for the solution systems have been calculated to know the presence of molecular interactions in the system. The trends in the variation of the solution property parameters indicate the existence of positive molecular interactions between the polymer and the solvent in solutions. The results also show the presence of higher degree of interaction between PEG and THF in solution compared to PMMA and THF.
Description: 712-718
ISSN: 0019-5596
Appears in Collections:IJPAP Vol.46(10) [October 2008]

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